Same here, nothing I can't live with.
I tried swapping out the squared cases for some spare rounded ones, but the downside is that it's a tighter squeeze in the box, which may cause problems when the second case and art booklet is housed. I'm not overly bothered with the stacks used here, much better an option than say the GoT steels where the discs are literally stacked one on top of the other.
My only gripe, and it's a minor gripe, is that we've now had three Gundam releases, and all three seem to use different types of case;
0079 - rounded blue
Recon - clear
Zeta - squared blue
If they could be a little more consistent going forward, it WOULD be appreciated!
Although I grant, it's a first-world gripe
Preference-wise, the clear cases worked really well on the Recon set, particularly with the white bordered default art on the cases.